文章基本信息

标题：Sustainability Analysis of Interconnected Food Production Systems via Theory of Barriers
本地全文：下载
作者：Tim Aschenbruck ; Willem Esterhuizen ; Murali Padmanabha 等
期刊名称：IFAC PapersOnLine
印刷版ISSN：2405-8963
出版年度：2020
卷号：53
期号：2
页码：15765-15770
DOI：10.1016/j.ifacol.2020.12.059
语种：English
出版社：Elsevier
摘要：AbstractControlled environment agriculture (CEA) is used for efficient food production. Efficiency can be increased further by interconnecting different CEA systems (e.g. plants and insect larvae or fish and larvae), using products and by-products of one system in the other. These interconnected systems define an overall system that can be described by models of interacting species. It is necessary to identify system parameters (e.g. initial species concentration, harvest rate, feed quality, etc.) such that the resources are not exhausted. For such systems with interacting species, modelled by the Lotka-Volterra equations, a set-based approach based on the recent results of the theory of barriers to exactly determine the so-called admissible set (also known as viability kernel) and the maximal robust positively invariant set is presented. Using an example of a larvae-fish based production system, steps to obtain special trajectories which are the boundaries of the admissible set are shown. This admissible set is used to prevent the under and over population of the species in the CEA. Furthermore, conditions of the system parameters are stated, such that the existence of these trajectories can be guaranteed.
关键词：KeywordsNonlinear systemsContinuous time systemsSystem analysisConstraint satisfaction problemsSetsControlled environment agriculture